I have Crestline double hung windows that were installed in my house when it was built in 1991. The current problem is that the lower jamb in one window will not stay up when opened. I disassembled the window and took out the tension spring on each side and tried to get replacements. I could not find any at hardware stores or Home Depot.
The window has a number in between the two panes of glass, it is: A27591X27B1M.The sash is 34 3/4 " wide x 24" high x 1 1/2 " depth. The spring is 15 1/2 " long x 5/16" wide.
I have included pictures. On each side there is a plastic housing which contains the spring inside. The spring attaches to the top of the plastic housing and to a plastic rectangular carriage that has the hole that the pin on the sash fits into.
